"make distcheck" with automake-from-trunk would fail like this:
...
Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old: .deps
Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old/lib: .deps
Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old/lib/glthread: .deps
* dist-check.mk (my-distcheck): Remove all .deps directories before
comparing the two hierarchies.
)
(cd $(t) && mv $(distdir) $(distdir).old \
&& $(amtar_extract_) - ) < $(preferred_tarball_)
+ find $(t)/$(distdir).old $(t)/$(distdir) -name .deps | xargs rmdir
diff -ur $(t)/$(distdir).old $(t)/$(distdir)
-rm -rf $(t)
rmdir $(tmpdir)/$(PACKAGE) $(tmpdir)